|First appearance||The Moomins and the Great Flood|
Especially in the early books Moominvalley is depicted as a beautiful place with green slopes, rivers, fruit trees, flowers and a place for calm and peaceful life as in the tradition of pastoral poetry, and yet it is still threatened by natural forces such as flooding and volcanoes. The valley is surrounded by Lonely Mountains in the east and by other mountains in the south, while the west faces the sea. Thus, travel on land is often preceded by mountain climbing in the stories. It was inspired by Ängsmarn, a family retreat in Sweden, which is also situated on a grassy field facing the sea and surrounded by rocky outcrops. The Moominvalley is also a manifestation of Jansson's escapism; she often fantasized of establishing a colony in Morocco or move to Basqueland or Tonga.
- Björn Sundmark, “A Serious Game”: Mapping Moominland. doi:10.1353/uni.2014.0022
- Karjalainen, Tuula: Tove Jansson – Tee työtä ja rakasta, s. 94–96. Helsinki: Tammi, 2013. ISBN 978-951-31-6963-3.
- Westin 2007, pp. 21.